dwng
Active member
Wanting to get a flexible lens upto around 400mm. Here are the contenders:
1. Nikon 80-400mm F/4.5-5.6 VR is slow and VR doesn't actually compensate for motion blur of the subject. Also, I can't afford it... (;
2. Sigma 80-400mm F/4.5-5.6 OS is supposedly faster (still not HSM) than the Nikon equivalent but much heavier, OS may give only 2 stops instead of 3 as per Nikon. Also not a fast lens but cheaper.
3. Sigma 70-200mm F/2.8 has limited range, but together with 2x teleconverter would make it 140-400mm. Very bright (without the converter) and would slow down to F/5.6 (2 stops) once teleconverter is attached. Price is about the same as Sigma 80-400mm OS. It is HSM and teleconverter still keeps the lens AF rather than MF (as it would in the case of 2). Together with converter will make this lens 23cm long and heavy...
4. Bigma 50-500mm F/4-6.3 is slow with great reach and apparently good optical performance despite it is a 10x zoom (is this true?). Cheapest of these 4 options.
It looks like the 3 option is the most optimum - fast if I only need 70-200mm and it can reach 400mm if I really need it. My questions are:
1. Does teleconverter degrade quality (sharpness, distortion, contract, colours, vignetting) significantly?
2. At 400mm F/5.6, this may be too slow thus not handheld-able but requires a tripod. Does this nullify the advantage of this setup and I should rather go with Bigma?
Anyone with experience with option 2 (70-200mm 2.8+2x converter)? Your advice is much appreciated. Thank you.
D.
1. Nikon 80-400mm F/4.5-5.6 VR is slow and VR doesn't actually compensate for motion blur of the subject. Also, I can't afford it... (;
2. Sigma 80-400mm F/4.5-5.6 OS is supposedly faster (still not HSM) than the Nikon equivalent but much heavier, OS may give only 2 stops instead of 3 as per Nikon. Also not a fast lens but cheaper.
3. Sigma 70-200mm F/2.8 has limited range, but together with 2x teleconverter would make it 140-400mm. Very bright (without the converter) and would slow down to F/5.6 (2 stops) once teleconverter is attached. Price is about the same as Sigma 80-400mm OS. It is HSM and teleconverter still keeps the lens AF rather than MF (as it would in the case of 2). Together with converter will make this lens 23cm long and heavy...
4. Bigma 50-500mm F/4-6.3 is slow with great reach and apparently good optical performance despite it is a 10x zoom (is this true?). Cheapest of these 4 options.
It looks like the 3 option is the most optimum - fast if I only need 70-200mm and it can reach 400mm if I really need it. My questions are:
1. Does teleconverter degrade quality (sharpness, distortion, contract, colours, vignetting) significantly?
2. At 400mm F/5.6, this may be too slow thus not handheld-able but requires a tripod. Does this nullify the advantage of this setup and I should rather go with Bigma?
Anyone with experience with option 2 (70-200mm 2.8+2x converter)? Your advice is much appreciated. Thank you.
D.